I have an MSO2072A and it has all the options except this one they just
started advertising. But it may not actually boost bandwidth from 70 to
300MHz, I may have read that into their web site blurb. Waiting to hear
from them. Not holding my breath. Sometimes you get unlucky with
marketing changes. When I bought the scope I was told I could upgrade to
300MHz, but then the truth changed. I don't blame RIGOL and certainly
not Tequipment (bought a LOT of stuff from them and like them a lot).
But the notion of being able to watch the the RP2040 at full tilt got me
excited. :-)
But this model is old as the hills. Bought it in 2015. It appears the
current equivalent might be the MSO0572.
I can honestly say in almost six years I've never been in a situation
where I said to myself "I'm so totally hosed because I don't have a
third analog channel". But had I not had the digital signal capability I
would have been hosed a lot, and even with four analog channels.
-Pete
On 2/22/21 9:00 AM, John Vaughters via TriEmbed wrote:
Pete,
Which Rigol model do you own?
I very much agree with you. I don't want to plop $400-500 down just to get a
scope, then realize I really needed to plop$1000-1500 to get what I needed and
now had waste $400-500.
John Vaughters
On Sunday, February 21, 2021, 9:15:14 PM EST, Pete Soper via TriEmbed
<triembed@triembed.org> wrote:
If you think you might be starting to play a long game consider getting
a "mixed signal" 'scope that can capture, trigger on, and decode a set
of digital signals as well as providing analog measurements, and
consider I2C/SPI/UART/USART decoding essential, if only as an option
(i.e. don't drop the money for something that can't eventually decode
these dead common serial modes unless you know you're only dipping a toe
in). I went a long time with my Rigol without an "unavoidable use case"
for logic signals involved with debugging new hardware, but when those
use cases finally came around it was nice to have the capability and not
be looking around for another piece of equipment, most especially when
you need to see what's going on with several signals at once. In about
seven years I think I've topped out with two analog and seven or eight
digital signals with one set of gadgets. The integration of digital and
analog is a real plus, for instance where you need to jump around
between figuring out a noise issue vs something basically wrong with a
serial line like with I2C. And of course you can correlate analog such
as with A/D converters with digital signals feeding them to sort out issues.
-Pete
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